// SPDX-License-Identifier: GPL-2.0

#include <media/v4l2-event.h>
#include <media/v4l2-mem2mem.h>
#include <media/videobuf2-dma-contig.h>

#include "mtk_vcodec_dec.h"
#include "mtk_vcodec_dec_pm.h"
#include "vdec_drv_if.h"

static struct mtk_video_fmt mtk_video_formats[] = {
        {
                .fourcc = V4L2_PIX_FMT_H264,
                .type = MTK_FMT_DEC,
                .num_planes = 1,
                .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
                .frmsize = { MTK_VDEC_MIN_W, MTK_VDEC_MAX_W, 16,
                             MTK_VDEC_MIN_H, MTK_VDEC_MAX_H, 16 },
        },
        {
                .fourcc = V4L2_PIX_FMT_VP8,
                .type = MTK_FMT_DEC,
                .num_planes = 1,
                .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
                .frmsize = { MTK_VDEC_MIN_W, MTK_VDEC_MAX_W, 16,
                             MTK_VDEC_MIN_H, MTK_VDEC_MAX_H, 16 },
        },
        {
                .fourcc = V4L2_PIX_FMT_VP9,
                .type = MTK_FMT_DEC,
                .num_planes = 1,
                .flags = V4L2_FMT_FLAG_DYN_RESOLUTION,
                .frmsize = { MTK_VDEC_MIN_W, MTK_VDEC_MAX_W, 16,
                             MTK_VDEC_MIN_H, MTK_VDEC_MAX_H, 16 },
        },
        {
                .fourcc = V4L2_PIX_FMT_MT21C,
                .type = MTK_FMT_FRAME,
                .num_planes = 2,
        },
};

static const unsigned int num_supported_formats =
        ARRAY_SIZE(mtk_video_formats);

#define DEFAULT_OUT_FMT_IDX 0
#define DEFAULT_CAP_FMT_IDX 3

/*
 * This function tries to clean all display buffers, the buffers will return
 * in display order.
 * Note the buffers returned from codec driver may still be in driver's
 * reference list.
 */
static struct vb2_buffer *get_display_buffer(struct mtk_vcodec_dec_ctx *ctx)
{
        struct vdec_fb *disp_frame_buffer = NULL;
        struct mtk_video_dec_buf *dstbuf;
        struct vb2_v4l2_buffer *vb;

        mtk_v4l2_vdec_dbg(3, ctx, "[%d]", ctx->id);
        if (vdec_if_get_param(ctx, GET_PARAM_DISP_FRAME_BUFFER,
                              &disp_frame_buffer)) {
                mtk_v4l2_vdec_err(ctx, "[%d]Cannot get param : GET_PARAM_DISP_FRAME_BUFFER",
                                  ctx->id);
                return NULL;
        }

        if (!disp_frame_buffer) {
                mtk_v4l2_vdec_dbg(3, ctx, "No display frame buffer");
                return NULL;
        }

        dstbuf = container_of(disp_frame_buffer, struct mtk_video_dec_buf,
                              frame_buffer);
        vb = &dstbuf->m2m_buf.vb;
        mutex_lock(&ctx->lock);
        if (dstbuf->used) {
                mtk_v4l2_vdec_dbg(2, ctx, "[%d]status=%x queue id=%d to done_list %d",
                                  ctx->id, disp_frame_buffer->status,
                                  vb->vb2_buf.index, dstbuf->queued_in_vb2);

                v4l2_m2m_buf_done(vb, VB2_BUF_STATE_DONE);
                ctx->decoded_frame_cnt++;
        }
        mutex_unlock(&ctx->lock);
        return &vb->vb2_buf;
}

/*
 * This function tries to clean all capture buffers that are not used as
 * reference buffers by codec driver any more
 * In this case, we need re-queue buffer to vb2 buffer if user space
 * already returns this buffer to v4l2 or this buffer is just the output of
 * previous sps/pps/resolution change decode, or do nothing if user
 * space still owns this buffer
 */
static struct vb2_buffer *get_free_buffer(struct mtk_vcodec_dec_ctx *ctx)
{
        struct mtk_video_dec_buf *dstbuf;
        struct vdec_fb *free_frame_buffer = NULL;
        struct vb2_v4l2_buffer *vb;

        if (vdec_if_get_param(ctx, GET_PARAM_FREE_FRAME_BUFFER,
                              &free_frame_buffer)) {
                mtk_v4l2_vdec_err(ctx, "[%d] Error!! Cannot get param", ctx->id);
                return NULL;
        }
        if (!free_frame_buffer) {
                mtk_v4l2_vdec_dbg(3, ctx, " No free frame buffer");
                return NULL;
        }

        mtk_v4l2_vdec_dbg(3, ctx, "[%d] tmp_frame_addr = 0x%p", ctx->id,
                          free_frame_buffer);

        dstbuf = container_of(free_frame_buffer, struct mtk_video_dec_buf,
                              frame_buffer);
        vb = &dstbuf->m2m_buf.vb;

        mutex_lock(&ctx->lock);
        if (dstbuf->used) {
                if (dstbuf->queued_in_vb2 && dstbuf->queued_in_v4l2 &&
                    free_frame_buffer->status == FB_ST_FREE) {
                        /*
                         * After decode sps/pps or non-display buffer, we don't
                         * need to return capture buffer to user space, but
                         * just re-queue this capture buffer to vb2 queue.
                         * This reduce overheads that dq/q unused capture
                         * buffer. In this case, queued_in_vb2 = true.
                         */
                        mtk_v4l2_vdec_dbg(2, ctx, "[%d]status=%x queue id=%d to rdy_queue %d",
                                          ctx->id, free_frame_buffer->status,
                                          vb->vb2_buf.index, dstbuf->queued_in_vb2);
                        v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
                } else if (!dstbuf->queued_in_vb2 && dstbuf->queued_in_v4l2) {
                        /*
                         * If buffer in v4l2 driver but not in vb2 queue yet,
                         * and we get this buffer from free_list, it means
                         * that codec driver do not use this buffer as
                         * reference buffer anymore. We should q buffer to vb2
                         * queue, so later work thread could get this buffer
                         * for decode. In this case, queued_in_vb2 = false
                         * means this buffer is not from previous decode
                         * output.
                         */
                        mtk_v4l2_vdec_dbg(2, ctx,
                                          "[%d]status=%x queue id=%d to rdy_queue",
                                          ctx->id, free_frame_buffer->status,
                                          vb->vb2_buf.index);
                        v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
                        dstbuf->queued_in_vb2 = true;
                } else {
                        /*
                         * Codec driver do not need to reference this capture
                         * buffer and this buffer is not in v4l2 driver.
                         * Then we don't need to do any thing, just add log when
                         * we need to debug buffer flow.
                         * When this buffer q from user space, it could
                         * directly q to vb2 buffer
                         */
                        mtk_v4l2_vdec_dbg(3, ctx, "[%d]status=%x err queue id=%d %d %d",
                                          ctx->id, free_frame_buffer->status,
                                          vb->vb2_buf.index, dstbuf->queued_in_vb2,
                                          dstbuf->queued_in_v4l2);
                }
                dstbuf->used = false;
        }
        mutex_unlock(&ctx->lock);
        return &vb->vb2_buf;
}

static void clean_display_buffer(struct mtk_vcodec_dec_ctx *ctx)
{
        while (get_display_buffer(ctx))
                ;
}

static void clean_free_buffer(struct mtk_vcodec_dec_ctx *ctx)
{
        while (get_free_buffer(ctx))
                ;
}

static void mtk_vdec_queue_res_chg_event(struct mtk_vcodec_dec_ctx *ctx)
{
        static const struct v4l2_event ev_src_ch = {
                .type = V4L2_EVENT_SOURCE_CHANGE,
                .u.src_change.changes = V4L2_EVENT_SRC_CH_RESOLUTION,
        };

        mtk_v4l2_vdec_dbg(1, ctx, "[%d]", ctx->id);
        v4l2_event_queue_fh(&ctx->fh, &ev_src_ch);
}

static int mtk_vdec_flush_decoder(struct mtk_vcodec_dec_ctx *ctx)
{
        bool res_chg;
        int ret;

        ret = vdec_if_decode(ctx, NULL, NULL, &res_chg);
        if (ret)
                mtk_v4l2_vdec_err(ctx, "DecodeFinal failed, ret=%d", ret);

        clean_display_buffer(ctx);
        clean_free_buffer(ctx);

        return 0;
}

static void mtk_vdec_update_fmt(struct mtk_vcodec_dec_ctx *ctx,
                                unsigned int pixelformat)
{
        const struct mtk_video_fmt *fmt;
        struct mtk_q_data *dst_q_data;
        unsigned int k;

        dst_q_data = &ctx->q_data[MTK_Q_DATA_DST];
        for (k = 0; k < num_supported_formats; k++) {
                fmt = &mtk_video_formats[k];
                if (fmt->fourcc == pixelformat) {
                        mtk_v4l2_vdec_dbg(1, ctx, "Update cap fourcc(%d -> %d)",
                                          dst_q_data->fmt->fourcc, pixelformat);
                        dst_q_data->fmt = fmt;
                        return;
                }
        }

        mtk_v4l2_vdec_err(ctx, "Cannot get fourcc(%d), using init value", pixelformat);
}

static int mtk_vdec_pic_info_update(struct mtk_vcodec_dec_ctx *ctx)
{
        unsigned int dpbsize = 0;
        int ret;

        if (vdec_if_get_param(ctx, GET_PARAM_PIC_INFO,
                              &ctx->last_decoded_picinfo)) {
                mtk_v4l2_vdec_err(ctx, "[%d]Error!! Cannot get param : GET_PARAM_PICTURE_INFO ERR",
                                  ctx->id);
                return -EINVAL;
        }

        if (ctx->last_decoded_picinfo.pic_w == 0 ||
            ctx->last_decoded_picinfo.pic_h == 0 ||
            ctx->last_decoded_picinfo.buf_w == 0 ||
            ctx->last_decoded_picinfo.buf_h == 0) {
                mtk_v4l2_vdec_err(ctx, "Cannot get correct pic info");
                return -EINVAL;
        }

        if (ctx->last_decoded_picinfo.cap_fourcc != ctx->picinfo.cap_fourcc &&
            ctx->picinfo.cap_fourcc != 0)
                mtk_vdec_update_fmt(ctx, ctx->picinfo.cap_fourcc);

        if (ctx->last_decoded_picinfo.pic_w == ctx->picinfo.pic_w ||
            ctx->last_decoded_picinfo.pic_h == ctx->picinfo.pic_h)
                return 0;

        mtk_v4l2_vdec_dbg(1, ctx, "[%d]-> new(%d,%d), old(%d,%d), real(%d,%d)", ctx->id,
                          ctx->last_decoded_picinfo.pic_w,
                          ctx->last_decoded_picinfo.pic_h, ctx->picinfo.pic_w,
                          ctx->picinfo.pic_h, ctx->last_decoded_picinfo.buf_w,
                          ctx->last_decoded_picinfo.buf_h);

        ret = vdec_if_get_param(ctx, GET_PARAM_DPB_SIZE, &dpbsize);
        if (dpbsize == 0)
                mtk_v4l2_vdec_err(ctx, "Incorrect dpb size, ret=%d", ret);

        ctx->dpb_size = dpbsize;

        return ret;
}

static void mtk_vdec_worker(struct work_struct *work)
{
        struct mtk_vcodec_dec_ctx *ctx =
                container_of(work, struct mtk_vcodec_dec_ctx, decode_work);
        struct mtk_vcodec_dec_dev *dev = ctx->dev;
        struct vb2_v4l2_buffer *src_buf, *dst_buf;
        struct mtk_vcodec_mem buf;
        struct vdec_fb *pfb;
        bool res_chg = false;
        int ret;
        struct mtk_video_dec_buf *dst_buf_info, *src_buf_info;

        src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
        if (!src_buf) {
                v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
                mtk_v4l2_vdec_dbg(1, ctx, "[%d] src_buf empty!!", ctx->id);
                return;
        }

        dst_buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
        if (!dst_buf) {
                v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
                mtk_v4l2_vdec_dbg(1, ctx, "[%d] dst_buf empty!!", ctx->id);
                return;
        }

        dst_buf_info =
                container_of(dst_buf, struct mtk_video_dec_buf, m2m_buf.vb);

        pfb = &dst_buf_info->frame_buffer;
        pfb->base_y.va = vb2_plane_vaddr(&dst_buf->vb2_buf, 0);
        pfb->base_y.dma_addr =
                vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
        pfb->base_y.size = ctx->picinfo.fb_sz[0];

        pfb->base_c.va = vb2_plane_vaddr(&dst_buf->vb2_buf, 1);
        pfb->base_c.dma_addr =
                vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 1);
        pfb->base_c.size = ctx->picinfo.fb_sz[1];
        pfb->status = 0;
        mtk_v4l2_vdec_dbg(3, ctx, "===>[%d] vdec_if_decode() ===>", ctx->id);

        mtk_v4l2_vdec_dbg(3, ctx,
                          "id=%d Framebuf  pfb=%p VA=%p Y_DMA=%pad C_DMA=%pad Size=%zx",
                          dst_buf->vb2_buf.index, pfb, pfb->base_y.va,
                          &pfb->base_y.dma_addr, &pfb->base_c.dma_addr, pfb->base_y.size);

        if (src_buf == &ctx->empty_flush_buf.vb) {
                mtk_v4l2_vdec_dbg(1, ctx, "Got empty flush input buffer.");
                src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);

                /* update dst buf status */
                dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
                mutex_lock(&ctx->lock);
                dst_buf_info->used = false;
                mutex_unlock(&ctx->lock);

                vdec_if_decode(ctx, NULL, NULL, &res_chg);
                clean_display_buffer(ctx);
                vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 0);
                if (ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 2)
                        vb2_set_plane_payload(&dst_buf->vb2_buf, 1, 0);
                dst_buf->flags |= V4L2_BUF_FLAG_LAST;
                v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE);
                clean_free_buffer(ctx);
                v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
                return;
        }

        src_buf_info =
                container_of(src_buf, struct mtk_video_dec_buf, m2m_buf.vb);

        buf.va = vb2_plane_vaddr(&src_buf->vb2_buf, 0);
        buf.dma_addr = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
        buf.size = (size_t)src_buf->vb2_buf.planes[0].bytesused;
        if (!buf.va) {
                v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
                mtk_v4l2_vdec_err(ctx, "[%d] id=%d src_addr is NULL!!", ctx->id,
                                  src_buf->vb2_buf.index);
                return;
        }
        mtk_v4l2_vdec_dbg(3, ctx, "[%d] Bitstream VA=%p DMA=%pad Size=%zx vb=%p",
                          ctx->id, buf.va, &buf.dma_addr, buf.size, src_buf);
        dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp;
        dst_buf->timecode = src_buf->timecode;
        mutex_lock(&ctx->lock);
        dst_buf_info->used = true;
        mutex_unlock(&ctx->lock);
        src_buf_info->used = true;

        ret = vdec_if_decode(ctx, &buf, pfb, &res_chg);

        if (ret) {
                mtk_v4l2_vdec_err(ctx,
                                  "[%d] decode src[%d] sz=0x%zx pts=%llu dst[%d] ret=%d res_chg=%d",
                                  ctx->id, src_buf->vb2_buf.index, buf.size,
                                  src_buf->vb2_buf.timestamp, dst_buf->vb2_buf.index, ret, res_chg);
                src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
                if (ret == -EIO) {
                        mutex_lock(&ctx->lock);
                        src_buf_info->error = true;
                        mutex_unlock(&ctx->lock);
                }
                v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
        } else if (!res_chg) {
                /*
                 * we only return src buffer with VB2_BUF_STATE_DONE
                 * when decode success without resolution change
                 */
                src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
                v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
        }

        dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
        clean_display_buffer(ctx);
        clean_free_buffer(ctx);

        if (!ret && res_chg) {
                mtk_vdec_pic_info_update(ctx);
                /*
                 * On encountering a resolution change in the stream.
                 * The driver must first process and decode all
                 * remaining buffers from before the resolution change
                 * point, so call flush decode here
                 */
                mtk_vdec_flush_decoder(ctx);
                /*
                 * After all buffers containing decoded frames from
                 * before the resolution change point ready to be
                 * dequeued on the CAPTURE queue, the driver sends a
                 * V4L2_EVENT_SOURCE_CHANGE event for source change
                 * type V4L2_EVENT_SRC_CH_RESOLUTION
                 */
                mtk_vdec_queue_res_chg_event(ctx);
        }
        v4l2_m2m_job_finish(dev->m2m_dev_dec, ctx->m2m_ctx);
}

static void vb2ops_vdec_stateful_buf_queue(struct vb2_buffer *vb)
{
        struct vb2_v4l2_buffer *src_buf;
        struct mtk_vcodec_mem src_mem;
        bool res_chg = false;
        int ret;
        unsigned int dpbsize = 1, i;
        struct mtk_vcodec_dec_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
        struct vb2_v4l2_buffer *vb2_v4l2;
        struct mtk_q_data *dst_q_data;

        mtk_v4l2_vdec_dbg(3, ctx, "[%d] (%d) id=%d, vb=%p", ctx->id,
                          vb->vb2_queue->type, vb->index, vb);
        /*
         * check if this buffer is ready to be used after decode
         */
        if (vb->vb2_queue->type != V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
                struct mtk_video_dec_buf *buf;

                vb2_v4l2 = to_vb2_v4l2_buffer(vb);
                buf = container_of(vb2_v4l2, struct mtk_video_dec_buf,
                                   m2m_buf.vb);
                mutex_lock(&ctx->lock);
                if (!buf->used) {
                        v4l2_m2m_buf_queue(ctx->m2m_ctx, vb2_v4l2);
                        buf->queued_in_vb2 = true;
                        buf->queued_in_v4l2 = true;
                } else {
                        buf->queued_in_vb2 = false;
                        buf->queued_in_v4l2 = true;
                }
                mutex_unlock(&ctx->lock);
                return;
        }

        v4l2_m2m_buf_queue(ctx->m2m_ctx, to_vb2_v4l2_buffer(vb));

        if (ctx->state != MTK_STATE_INIT) {
                mtk_v4l2_vdec_dbg(3, ctx, "[%d] already init driver %d", ctx->id, ctx->state);
                return;
        }

        src_buf = v4l2_m2m_next_src_buf(ctx->m2m_ctx);
        if (!src_buf) {
                mtk_v4l2_vdec_err(ctx, "No src buffer");
                return;
        }

        if (src_buf == &ctx->empty_flush_buf.vb) {
                /* This shouldn't happen. Just in case. */
                mtk_v4l2_vdec_err(ctx, "Invalid flush buffer.");
                v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
                return;
        }

        src_mem.va = vb2_plane_vaddr(&src_buf->vb2_buf, 0);
        src_mem.dma_addr = vb2_dma_contig_plane_dma_addr(&src_buf->vb2_buf, 0);
        src_mem.size = (size_t)src_buf->vb2_buf.planes[0].bytesused;
        mtk_v4l2_vdec_dbg(2, ctx, "[%d] buf id=%d va=%p dma=%pad size=%zx", ctx->id,
                          src_buf->vb2_buf.index, src_mem.va, &src_mem.dma_addr, src_mem.size);

        ret = vdec_if_decode(ctx, &src_mem, NULL, &res_chg);
        if (ret || !res_chg) {
                /*
                 * fb == NULL means to parse SPS/PPS header or
                 * resolution info in src_mem. Decode can fail
                 * if there is no SPS header or picture info
                 * in bs
                 */

                src_buf = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
                if (ret == -EIO) {
                        mtk_v4l2_vdec_err(ctx, "[%d] Unrecoverable error in vdec_if_decode.",
                                          ctx->id);
                        ctx->state = MTK_STATE_ABORT;
                        v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR);
                } else {
                        v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE);
                }
                mtk_v4l2_vdec_dbg(ret ? 0 : 1, ctx,
                                  "[%d] decode() src_buf=%d, size=%zu, fail=%d, res_chg=%d",
                                  ctx->id, src_buf->vb2_buf.index, src_mem.size, ret, res_chg);
                return;
        }

        if (vdec_if_get_param(ctx, GET_PARAM_PIC_INFO, &ctx->picinfo)) {
                mtk_v4l2_vdec_err(ctx, "[%d]Error!! Cannot get param : GET_PARAM_PICTURE_INFO ERR",
                                  ctx->id);
                return;
        }

        ctx->last_decoded_picinfo = ctx->picinfo;
        dst_q_data = &ctx->q_data[MTK_Q_DATA_DST];
        for (i = 0; i < dst_q_data->fmt->num_planes; i++) {
                dst_q_data->sizeimage[i] = ctx->picinfo.fb_sz[i];
                dst_q_data->bytesperline[i] = ctx->picinfo.buf_w;
        }

        mtk_v4l2_vdec_dbg(2, ctx, "[%d] init OK wxh=%dx%d pic wxh=%dx%d sz[0]=0x%x sz[1]=0x%x",
                          ctx->id, ctx->picinfo.buf_w, ctx->picinfo.buf_h, ctx->picinfo.pic_w,
                          ctx->picinfo.pic_h, dst_q_data->sizeimage[0], dst_q_data->sizeimage[1]);

        ret = vdec_if_get_param(ctx, GET_PARAM_DPB_SIZE, &dpbsize);
        if (dpbsize == 0)
                mtk_v4l2_vdec_err(ctx, "[%d] GET_PARAM_DPB_SIZE fail=%d", ctx->id, ret);

        ctx->dpb_size = dpbsize;
        ctx->state = MTK_STATE_HEADER;
        mtk_v4l2_vdec_dbg(1, ctx, "[%d] dpbsize=%d", ctx->id, ctx->dpb_size);

        mtk_vdec_queue_res_chg_event(ctx);
}

static int mtk_vdec_g_v_ctrl(struct v4l2_ctrl *ctrl)
{
        struct mtk_vcodec_dec_ctx *ctx = ctrl_to_dec_ctx(ctrl);
        int ret = 0;

        switch (ctrl->id) {
        case V4L2_CID_MIN_BUFFERS_FOR_CAPTURE:
                if (ctx->state >= MTK_STATE_HEADER) {
                        ctrl->val = ctx->dpb_size;
                } else {
                        mtk_v4l2_vdec_dbg(0, ctx, "Seqinfo not ready");
                        ctrl->val = 0;
                }
                break;
        default:
                ret = -EINVAL;
        }
        return ret;
}

static const struct v4l2_ctrl_ops mtk_vcodec_dec_ctrl_ops = {
        .g_volatile_ctrl = mtk_vdec_g_v_ctrl,
};

static int mtk_vcodec_dec_ctrls_setup(struct mtk_vcodec_dec_ctx *ctx)
{
        struct v4l2_ctrl *ctrl;

        v4l2_ctrl_handler_init(&ctx->ctrl_hdl, 1);

        ctrl = v4l2_ctrl_new_std(&ctx->ctrl_hdl, &mtk_vcodec_dec_ctrl_ops,
                                 V4L2_CID_MIN_BUFFERS_FOR_CAPTURE, 0, 32, 1, 1);
        ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
        v4l2_ctrl_new_std_menu(&ctx->ctrl_hdl, &mtk_vcodec_dec_ctrl_ops,
                               V4L2_CID_MPEG_VIDEO_VP9_PROFILE,
                               V4L2_MPEG_VIDEO_VP9_PROFILE_0, 0,
                               V4L2_MPEG_VIDEO_VP9_PROFILE_0);
        /*
         * H264. Baseline / Extended decoding is not supported.
         */
        v4l2_ctrl_new_std_menu(&ctx->ctrl_hdl, &mtk_vcodec_dec_ctrl_ops,
                               V4L2_CID_MPEG_VIDEO_H264_PROFILE, V4L2_MPEG_VIDEO_H264_PROFILE_HIGH,
                               BIT(V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE) |
                               BIT(V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED),
                               V4L2_MPEG_VIDEO_H264_PROFILE_MAIN);

        if (ctx->ctrl_hdl.error) {
                mtk_v4l2_vdec_err(ctx, "Adding control failed %d", ctx->ctrl_hdl.error);
                return ctx->ctrl_hdl.error;
        }

        v4l2_ctrl_handler_setup(&ctx->ctrl_hdl);
        return 0;
}

static void mtk_init_vdec_params(struct mtk_vcodec_dec_ctx *ctx)
{
        unsigned int i;

        if (!(ctx->dev->dec_capability & VCODEC_CAPABILITY_4K_DISABLED)) {
                for (i = 0; i < num_supported_formats; i++) {
                        if (mtk_video_formats[i].type != MTK_FMT_DEC)
                                continue;

                        mtk_video_formats[i].frmsize.max_width =
                                VCODEC_DEC_4K_CODED_WIDTH;
                        mtk_video_formats[i].frmsize.max_height =
                                VCODEC_DEC_4K_CODED_HEIGHT;
                }
        }
}

static const struct vb2_ops mtk_vdec_frame_vb2_ops = {
        .queue_setup = vb2ops_vdec_queue_setup,
        .buf_prepare = vb2ops_vdec_buf_prepare,
        .start_streaming = vb2ops_vdec_start_streaming,

        .buf_queue = vb2ops_vdec_stateful_buf_queue,
        .buf_init = vb2ops_vdec_buf_init,
        .buf_finish = vb2ops_vdec_buf_finish,
        .stop_streaming = vb2ops_vdec_stop_streaming,
};

const struct mtk_vcodec_dec_pdata mtk_vdec_8173_pdata = {
        .init_vdec_params = mtk_init_vdec_params,
        .ctrls_setup = mtk_vcodec_dec_ctrls_setup,
        .vdec_vb2_ops = &mtk_vdec_frame_vb2_ops,
        .vdec_formats = mtk_video_formats,
        .num_formats = &num_supported_formats,
        .default_out_fmt = &mtk_video_formats[DEFAULT_OUT_FMT_IDX],
        .default_cap_fmt = &mtk_video_formats[DEFAULT_CAP_FMT_IDX],
        .worker = mtk_vdec_worker,
        .flush_decoder = mtk_vdec_flush_decoder,
        .is_subdev_supported = false,
        .hw_arch = MTK_VDEC_PURE_SINGLE_CORE,
};